Strap for Prestige Gold Oval 21.3

The lug width of the Longines Les Grandes Classiques L4.224.7.87.6 is precisely 12mm. This measurement is critical for strap compatibility and must be verified by measuring from centre-to-centre of the attachment pins. Do not confuse this with the interlug distance (lume), which is always larger.

Alligator leather in vegetable tanning is the optimal choice: its fine grain texture will not compete with the case, and its natural patina will deepen the sophistication of the piece. Alternatively, French calf in vegetable tanning offers more robust texture, or shell cordovan for those seeking intense lustre and liquid patina development over time.

Use a spring bar tool to gently remove the attachment pins from both sides. Position the tool in the small slot beneath the pin and press upward to release the internal spring. Work carefully to avoid scratching the white gold case. After removal, insert new pins into the 12mm strap and reattach to the case.

No. The 12mm lug width is highly specific and incompatible with standard straps (typically 14-20mm). Using an incorrectly sized strap would damage the case and create inadequate visual proportion. Only 12mm certified straps are appropriate for this reference.

A high-quality artisanal leather strap in vegetable tanning typically lasts 4-6 years with regular use and proper maintenance. Patina develops within the first 2-3 years. Avoid prolonged moisture exposure and periodically apply natural balm to extend lifespan. Dress watches not subjected to extreme mechanical stress may see straps endure well beyond 6 years.